Ok If their is any interest I can take some pictures and let you figure it out from there as I made no drawings and did this right when I started welding again after like 20 or so years off, maybe 3 years ago.
what I did was make a pivot arm for a Harbor Freight hand held portable band saw. The cost of the band saw on sale and with a 20% off coupon was about $59 and I figure another $10 in material.
Materials were all scrap from other projects. some 3/16 as a base to bolt to work table, 2 small 1/2 plate rems about 5x5", a piece of 10" long 1/2x1" bar and a 4" piece of angle iron.
If there is any interest in seeing pictures or a video of it in action I will post up some pictures and a video like to youtube ( I'll have to shoot the video)
I figure like a lot of you my budget had no room in it for a big horizontal band saw and I hate how long and loud a chop saw takes to go though 2" .250 wall square tube or anything up to 4" ( the opening of the saw ). with a good 10-14 bi-metal blade this thing makes short work of .250 wall tubing or anything up to 4"x4" and that could be solid .
The blades I bought were also from HF but were amreican made. Morse Bimetal 3 blades for $19 but starret and other good blade companies make bimetal blades for this saw because Milwaukee and other make a similar saw with the same blade size Except the others cost about $300 or more.
the cuts are dead straight too ( god only knows why ) as I figured I just wanted to get the cuts fairly close but the cut end of square tube will stand up dead straight on a flat surface with a square on 2 90 deg apart sides.
Its ugly as hell but works great and only takes about a couple hours and cuts about 10 times faster than a chop saw without all the noise and sparks & mess. any interest let me know.